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Arrow Charts

GrizzlyStik Momentum Arrow Spine Recommendations

Your arrow spine (deflection/stiffness) is effected by bow poundage, cut length, head weight and shooting form.  A full overview of arrow testing recommendations can be found on our arrow testing page.  For the majority of shooters, the GrizzlyStik arrow spines fall into the following spine/bow poundage spectrums.

  • Momentum TDT 170 spine is for 70# - 90# bow draws
  • Momentum TDT 240 spine is for 60# - 80#  bow draws
  • Momentum TDT 320 spine is for 50# - 70#  bow draws
  • Momentum TDT 400 spine is for 40# - 60#  bow draws